NASA shuttlemanagers and engineers will meet today to discuss whether to press ahead withrepairs to the Atlantis orbiter's hail-damaged tank for the agency's nextmission or replace the dinged vessel with a pristine replacement.

Engineershave been working to repair a myriad of divots and dings etched into to thevital foam insulation covering Atlantis' 15-story external tank during a freakFeb. 26 hail storm over its Florida launchpad at NASA's Kennedy Space Center (KSC). The resulting damage delayed theshuttle's planned 11-day STS-117 construction flight to the International SpaceStation(ISS) until mid-May at the earliest pending successful repairs.

Replacingthe external tank would push the spaceflight to June, NASA officials have said.

Last month,top NASA shuttlemanagers set April 10 as their deadline to decide whether to press aheadwith Atlantis' fuel tank repairs or shift to a new tank altogether. Anewshuttle fuel tank -- currently reserved to feed the launch of NASA's Endeavourorbiter during its STS-118 mission later this year -- arrived at KSC last week

"It'sstrictly a status report on the progress of the repairs," NASA spokespersonKyle Herring told SPACE.com Monday of today's shuttle meeting.

Shuttlemission managers are expected to discuss today's meeting during a press briefingslated for no earlier than 6:00 p.m. EDT (2200 GMT).

Meanwhile,NASA engineers are working to removeAtlantis' three main engines and inspect propellant lines to make surecarry no contamination after four small pieces of silicon rubber were found insimilar locations aboard the shuttle Discovery.